FR2420895A1 - Circuit d'alimentation pour dispositif de flash electronique destine a un appareil de prise de vues photographiques - Google Patents
Circuit d'alimentation pour dispositif de flash electronique destine a un appareil de prise de vues photographiquesInfo
- Publication number
- FR2420895A1 FR2420895A1 FR7906779A FR7906779A FR2420895A1 FR 2420895 A1 FR2420895 A1 FR 2420895A1 FR 7906779 A FR7906779 A FR 7906779A FR 7906779 A FR7906779 A FR 7906779A FR 2420895 A1 FR2420895 A1 FR 2420895A1
- Authority
- FR
- France
- Prior art keywords
- power supply
- electronic flash
- supply circuit
- voltage
- photographic shooting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stroboscope Apparatuses (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3150578A JPS54124570A (en) | 1978-03-19 | 1978-03-19 | Oscillation controller of flashing apparatus |
| JP5876678A JPS54150867A (en) | 1978-05-19 | 1978-05-19 | Oscillation controller of flashing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2420895A1 true FR2420895A1 (fr) | 1979-10-19 |
| FR2420895B3 FR2420895B3 (nl) | 1982-01-15 |
Family
ID=26369983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7906779A Granted FR2420895A1 (fr) | 1978-03-19 | 1979-03-16 | Circuit d'alimentation pour dispositif de flash electronique destine a un appareil de prise de vues photographiques |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1164521A (nl) |
| DE (1) | DE2910475A1 (nl) |
| FR (1) | FR2420895A1 (nl) |
| GB (2) | GB2079074B (nl) |
| NL (1) | NL7902121A (nl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8410519D0 (en) * | 1984-04-25 | 1984-05-31 | Ici Plc | Spraying apparatus |
-
1979
- 1979-03-13 CA CA000323321A patent/CA1164521A/en not_active Expired
- 1979-03-16 GB GB8115205A patent/GB2079074B/en not_active Expired
- 1979-03-16 GB GB7909360A patent/GB2020443B/en not_active Expired
- 1979-03-16 DE DE19792910475 patent/DE2910475A1/de not_active Ceased
- 1979-03-16 NL NL7902121A patent/NL7902121A/nl not_active Application Discontinuation
- 1979-03-16 FR FR7906779A patent/FR2420895A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CA1164521A (en) | 1984-03-27 |
| GB2020443B (en) | 1982-08-18 |
| GB2079074A (en) | 1982-01-13 |
| GB2079074B (en) | 1983-04-13 |
| FR2420895B3 (nl) | 1982-01-15 |
| DE2910475A1 (de) | 1979-09-20 |
| GB2020443A (en) | 1979-11-14 |
| NL7902121A (nl) | 1979-09-21 |
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